CVE-2026-85884CWE-306

CVE-2026-85884

High · published October 13, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
32.4
In the wild
Unconfirmed
What it is

Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to elevate privileges locally.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00394 · 32.4th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-13T23:21Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85884 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:01Z
    Windows Health and Optimized Experiences Service Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 19:01Z
    Windows Health and Optimized Experiences Service Elevation of Privilege Vulnerability
    cvelistv5